Instruction/ maintenance manual of the product 94605 Atwood Mobile Products
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1 September 2003 INTRODUCTION The 2004 edition of the Atwood W ater Heater Service Manual is a resour ce created to help service technicians identify Atwood product by serial number , diagnose service problems and ef ficiently and effectively pr ocess warranty claims.
2 NOTES THIS P AGE INTENTIONALL Y LEFT BLANK.
3 T ABLE OF CONTENTS Atwood W ater Heaters Atwood Letter 1 Aftermarket Model Identification 4 Pilot Models Questions 5 Model Number Explanation / Features 6 Recommended T ools & Equipment 7 Gas Th.
4 Aftermarket Gas W ater Heaters Includes Doors & Switches (when appropriate) G6A-7 ---------------------------------- 6 gal. w/pilot GC6AA-8 ------------------------------ 6 gal. combo w/pilot GC6AA-10E ---------------------------- 6 gal. electronic gas combo GCH6A-10E ---------------------------- 6 gal.
5 PILOT MODELS QUESTIONS The following questions should be answered during this portion of the manual: · Ar e the Robertshaw and White Rodgers thermostat gas control valves inter -changeable? · What.
6 Atwood 6 and 10 gallon Pilot W ater Heaters Atwood water heaters are designed and appr oved for use only in recr eation vehicles (travel trailers, 5th wheels, motor homes, etc.
7 Recommended T ools and Equipment U-T ube Manometer - This is the most accurate device for measuring gas pr essure. If you use a dial-type manometer , it should be calibrated periodically with this type of manometer . Thermostat Wr ench - This tool allows for easier and safer r emoval of the gas thermostat control.
8 Gas Thermostat Controls and Pilot Assemblies Only two makes of gas controls have been used on our pilot model water heaters. They ar e the Robertshaw “Unitrol” and White Rodger (formerly Jade or ITT). The Robertshaw control came in two dif ferent sizes of gas inlets: 3/8˝ inverted flar e and 3/8˝ N.
9 Pilot Sequence of Operation PILOT OPERA TION • Gas Pressure 11˝ W .C. to control is necessary . Set with two gas appliances running. • Gas Control supplies gas to pilot orifice when control ON / OFF pilot knob is held at pilot position. • Pilot Orifice meters gas to heat thermocouple.
10 Pilot and Main Burner Pilot Adjustment Only the gas pressur e, gas valve and the pilot orifice regulate the height of the pilot flame. Early model gas controls have a pilot adjustment scr ew , but this scr ew has very little effect on the pilot. The pilot adjustment has been removed fr om the current White Rodger contr ol.
11 Guides are only intended for use on Atwood ® pr oducts by service technicians who have successfully completed Atwood ® training. This guide should be used in conjunction with the appropriate Instruction Manual pr ovided with the product and any applicable Industry standar ds.
12 Engine Heat Exchange System The engine heat exchange system allows a motor home to heat the water while traveling. This convenient option allows you to arrive at your destination with hot water . Operating a pilot or electr onic water heater on gas while in transit is a dangerous practice.
13 Ground Switch Element Fixed Thermostat Manual Reset High Temperature Limit Switch ( 3 )-GREEN ( 1 )-BLACK BLACK ( 2 )-WHITE BLACK Hot Lead Ground Lead Common Lead Early model water heaters with 110 V AC heating capacity used a bolt-on heating element and a one piece thermostat/E.
14 Current pr oduction water heaters with the 110 V AC heating option use a screw-in heating element, a separate pre-set thermostat and a separate ECO. The screw-in heating element is rated at 1400 watts just like the bolt-on element. It is an incalloy element and can be run for a limited amount of time in a dry tank without shorting out.
15 ELECTRONIC IGNITION MODELS QUESTIONS The following questions should be answered during this portion of the manual: · What is minimum gas pressur e for proper water heater operation? · Where on th.
16 Atwood 6 and 10 gallon Electronic Ignition W ater Heaters Atwood water heaters are designed and appr oved for use only in recr eation vehicles (travel trailers, 5th wheels, motor homes, etc.). They are of fered in two sizes: 6 and 10 gallon capacities.
17 Recommended T ools and Equipment U-T ube Manometer - This is the most accurate device for measuring gas pr essure. If you use a dial-type manometer , it should be calibrated periodically with this type of manometer . Multi-meter - This is the most versatile meter and will test continuity and 12VDC.
18 DSI Sequence of Operation • Gas Supply 11˝ W .C to solenoid valve is necessary • 12VDC Batter y Voltage source to water heater or filtered side of Convertor • ON/OFF Switch It supplies 12VDC to water heater • Thermal Cut-Off A one shot heat sensing fuse that’ s normally closed and sends power to the thermostat.
19 Guides are only intended for use on Atwood ® pr oducts by service technicians who have successfully completed Atwood ® training. This guide should be used in conjunction with the appropriate Instruction Manual pr ovided with the product and any applicable Industry standar ds.
20 Electronic Ignition Water Heater (continued) Ef fective: 5/26/98 CAUSE SOLUTION EXCESSIVE OR INSUFFICIENT WA TER TEMPERA TURES By-pass kit valves not set properly ---------------------------- Place.
21 Guides are only intended for use on Atwood ® pr oducts by service technicians who have successfully completed Atwood ® training. This guide should be used in conjunction with the appropriate Instruction Manual pr ovided with the product and any applicable Industry Standards.
22 Intermittent Ignition Water Heater (continued) Ef fective: 8/21/00 5. CHECK THE AIR ADJUSTMENT . The burner tube has an adjustable air shutter on it at the end where it goes over the orifice. Position the air shutter so that it is 1/4 of the way open.
23 ** POTTED CHANNEL CIRCUIT BOARDS Atwood **potted circuit boar ds can be tested using a multi-meter . This test must be performed with the circuit boar d removed, and the meter set to the ohms scale. This will check the continuity of all tracks on the harness connection of the board.
24 W ater Heater Wiring Schematics Gas Solenoid Valves ECO Switch Non-Ignition Light Fixed Temperature Control Thermostat Remote Switch 12 volt DC Spark & Sense Thermal Cut-Off RED RED BLUE BROWN .
25 GENERAL INFORMA TION QUESTIONS The following questions should be answered during this portion of the manual: · What causes the pr essure-temperature r elief valve to weep when unit is in heating c.
26 PRESSURE-TEMPERA TURE RELIEF V AL VE Weeping or dripping of a pressure-temperature relief valve while the water heater is running DOES NOT mean it is defective. This is normal expansion of water as it is heated in the closed water system of a recreation vehicle.
27 FLUSHING YOUR WA TER HEA TER TO REMOVE THE ROTTEN EGG ODOR 1. T ur n off your main water supply . Drain you water heater tank. Reinstall drain plug. Remove the pressur e-temperature r elief valve. With a funnel use 4 parts white vinegar to two parts water .
28 T erminology Definition AGA American Gas Association Access Door hinged cover on outside of water heater By Pass Kit a combination of hoses and valves that can aid in the winterization of the water.
29 A TWOOD W A TER HEA TER LIMITED W ARRANTY Atwood Mobile Products warrants to the original owner and subject to the below mentioned conditions, that this product will be fr ee of defects in material or workmanship for a period of two years from the original date of purchase.
30 Return Goods Policy Effective August 7, 1995, all Atwood defective returns will no longer be repaired at the warehouses and returned to customers. Defective returns will be shipped back to the respective manufacturing facility for problem cause analysis within 30 days of sales.
31 June 17, 2003 Flat Rate Schedule W ater Heaters TIME ALLOWANCE SCHEDULE in hours Replacement of: Standard Pilot Electronic Ignition Model Model Access Door ............................................................................................
32 13 8 7 6 15 5 3 9 11 10 16 17 18 19 10 20 10 12 11 4 6 &10 gal. screw-in heating element 6 gallon bolt-on heating element 10 gallon bolt-on heating element 26 27 25 23 24 29 28 30 10 22 23 2 14 13 21 1 PILOT Water Heater 6 - 10 gallon First number in matrix refers to illustration number , the second is the part number .
33 Pilot W ater Heaters REPLACEMENT P ART REFERENCE September 2003 GC6A, GC6A-3, GC6A-6, GC6A-7 G6A, G6A-2, G6A-3, G6A-6, G6A-6P , G6A-7, G6A-7P GH6-3, GH6-6, GH6-7 GC6AA-7, GC6AA-7P GC6AA-8, GC6AA-8P.
34 Pilot W ater Heaters REPLACEMENT P ART REFERENCE September 2003 GC6A, GC6A-3, GC6A-6, GC6A-7 G6A, G6A-2, G6A-3, G6A-6, G6A-6P , G6A-7, G6A-7P GH6-3, GH6-6, GH6-7 GC6AA-7, GC6AA-7P GC6AA-8, GC6AA-8P.
35 10 gallon bolt-on heating element 22 18 6 gallon bolt-on heating element 16 17 18 21 19 6 gallon screw-in heating element 24 23 25 10 gallon screw-in heating element 24 19 25 6 gallon screw-in heat.
36 Rear-mount 12VDC electronic thermostats Front-mount 12VDC electronic thermostats Brown Brown Red Red 15-A 1 12 8 9 10 11 11 5A 5 33 6 4 30 4A/B 29B 8A 7 12 2 3 12 12 13 15 14 31 ELECTRONIC Water Heater 6 - 10 gallon 26 28 8B 28 29A First number in matrix refers to illustration number , the second is the part number .
37 Electr onic W ater Heaters REPLACEMENT P ART REFERENCE September 2003 91470 130° Fr ont Mount thermostat (not shown) ✗ ✗ ✗ ✗ ✗✗✗ ✗✗✗ ✗ ✗ ✗ ✗ 93105 Adjustable Thermostat.
38 Electr onic W ater Heaters REPLACEMENT P ART REFERENCE September 2003 15-A 91802 Drawn Pan (Electronic 6 Gallon) ✗ ✗ ✗ ✗ ✗ ✗ 15-A 93871 Drawn Pan (Electronic 10 Gal.) ✗ ✗✗✗ ✗✗ ✗ 16 92857 110V AC ON / OFF Switch (6 Gal.) No Longer Available (Use 91092 or 91116) 16 92858 110V AC On/Off Switch (10 Gal.
39 GAS G6A-2, G6A-3, G6A-6, G6A-7 ● G10-1, G10-2 ● GAS PILOT -RELIGHT G6A-6P , G6A-7P ● GC6AA-7P , GC6AA-8P ● GAS/PILOT RELIGHT COMBINA TION GC10-2P ● G10-1P , G10-2P ● GC10A-2P , GC10A-3P.
40 ELECTRIC W A TER HEA TER ALL MARINE W A TER HEA TER CAP ACITIES 6 7 8 9 10 2B 3 4 5 Front Rear 2A 1 ITEM P ART # DESCRIPTION 1 92248 EHM4-SM Service T ank 91745 Plate 2 A 91740 ECO Switch (220V) 2 .
An important point after buying a device Atwood Mobile Products 94605 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Atwood Mobile Products 94605 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Atwood Mobile Products 94605 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Atwood Mobile Products 94605 you will learn all the available features of the product, as well as information on its operation. The information that you get Atwood Mobile Products 94605 will certainly help you make a decision on the purchase.
If you already are a holder of Atwood Mobile Products 94605, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Atwood Mobile Products 94605.
However, one of the most important roles played by the user manual is to help in solving problems with Atwood Mobile Products 94605. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Atwood Mobile Products 94605 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
