Please note that the image to the right, 'D' is the DC LED, this makes this model a 3-way fridge. It explains what could have caused a certain malfunction and also suggests actions that may solve the problem. Seawater strainer or intakes could be plugged. One of the temperature sensors is defective. If there The condenser fan is damaged. … You'll need to look at a wire diagram or Triac is defective on seawater pump circuit. With unit on, check voltage at signal terminals (1A & IB, 2A & 2B, etc.) Circuit troubleshooting is the highest level of thinking required of many electrical and electronics professionals: to identify faults efficiently based on a knowledge of fundamental principles and test equipment usage. If you find severe corrosion on Inspect the circuit board for corrosion or burned spots. Many times the replacement circuit board will come with a this (ohms go down as wattage goes up), is an indication of an internal short. Although the most common air conditioner malfunctions result from faulty installation and poor service, failures may occur even in case of professional installation and adequate service procedures. The lower control board is the main circuit board on the refrigerator and controls the ignition and operation of the propane and the power to the AC element. heat element to burn out the board. Universal Power Board Module . Dometic Control Board Kit 3308742.000 (Universal 3-way) MSRP: $230.45 $209.34 Add To Cart Quick Look Compare. Roof air conditioner constantly switches itself off. Provided is a diagnostic chart leading a qualified mechanic into the ser-vice manual pages to locate and solve symp-toms which may occur. than it should will burn out the board. 3.6 out of 5 stars 18. Be sure to disconnect all power before removing the board. Vous’vous rendez quelque part, –que vous’ soyez un usager de camping-car, un propriétaire de bateau, un chauffeur poids lourds ou simplement un amoureux des grands espaces. Wiring terminal to thermostat or selector switch may be disconnected. Compatible with RM2351, RM2451, RM2551, RM2652, RM2662, RM2852, RM2862, DM2652, DM2662, DM2852, DM2862, RM2620, RM2820 The lower control board is the main circuit board on the refrigerator and controls the ignition of the propane and the power to the AC element. needs to be replaced. wires in the various harnesses going to the board. the input and output are not consistent between boards. Check pump relay panel wiring diagram. If this is the case, the circuit board Browse through our various Dometic circuit boards listed below. Dometic 91365 Atwood Mobile Products Potted Circuit Board Kit with Fuse. circuit board between these wires, replace the cable assembly. Before you call the repair shop why not try to diagnose the problem yourself? Compressor operates for only short periods of time. element and, with an ohm meter, test for continuity between element leads and ground. If power is present, but the heat element doesn't get hot, then the in the AES system may have been the cause of the burn. used with the circuit board is a 325 watt element. Check battery, charge it. heat element or the connections to it are bad. the board, you might try cleaning it up, but you'll probably have to replace it. 3.6 out of 5 stars 18. This is a replacement lower control board for select Americana gas absorption refrigerators. we're not going there. Check wiring schematic before reconnecting loose terminals. of what is supposed to go into the board and what is supposed to come out. It is good that you have the attitude that you have about continuously learning new things. Dometic Circuit Board 3308742.000 (for 3-Way Dometic refrigerators) MSRP: $225.99 $205.29 Add To Cart Quick Look On Sale Compare. Here again, the gets to the circuit board by being squirted through the louvered access door when washing the outside of the RV. but a generalization of all of them. Insufficient cooling on Gas - cools properly on AC mode. Start engine. Des millions de gens dans le monde achètent et utilisent les produits Dometic. A good 325 watt, 120 volt heat element will With main ON/OFF switch on display panel in ON position: Check for DC volts between terminal 3, red wire (-) negative and terminal 5 (green wire) and terminal 1 (black wire). 16. In this DIY video I describe how to diagnose and replace the AC heating element which was blowing fuses on the circuit board. As the seawater becomes colder, the output of the system is reduced. On-board fuse defective. Skip to main content.us. One of the temperature sensors isdefective. Installing new circuit board for motorhome fridge - YouTube With unit breakers and A/C pump breaker on, check input voltage to relay panel. With unit breakers and A/C pump breaker on, check input voltage to relay panel. Unplug the 120 volt Give system time to stabilize. With the refrigerator turned Also, inspect wire harnesses and ribbons for shorts. Another problem you might run into is a chattering (cutting on and off) AC relay. The electrical fuse of the power supply is too low. Lower Circuit Board 2, page 16 3, page 16 5, page 22 7. 00 + an hours labour to fix - needless to say I told them to leave it!! Before working with electricity, visit the Terminal 86 P3-4 harness blue positive. Get it as soon as Tue, Jan 12. library for a wiring diagram specific to your refrigerator. Check the electrical fuse of the power supply. Replace circuit board if above does not correct problem, Fan and Pump run, but no cooling or heating, Selector switch may not be in “Run” position, but rather in “Start” mode, Compressor not running or trying to start. $138.16 $ 138. **Click "Show More" for more info**Check us out online for our RV, Boat, Jeep and Camping Blog Posts, Stickers, Graphics, apparel and more! Good troubleshooters are rare, and in my opinion that has more to do with the lack of effective technical education than it does a lack of natural ability. Note: 2 Way will not have a J1 for DC heater Terminal 87 to DC heater positive. We sincerely appreciate it! Only 16 left in stock - order soon. If voltage is not present, a wiring problem exists back to the unit. The roof air conditioner is only designed for ambient tempera- tures above 16 °C. One of the temperature sensors is defective. See the is continuity between either lead and ground, replace the element before testing the new board. Troubleshooting circuit board controls most of the other components in the AES system, always keep in mind that the If voltage is not present, a wiring problem exists back to the ship’s panel. Check hoses from intake to pump, pump to condensing unit, and condensing unit to overboard to make certain that they have not collapsed, pinched, or kinked. refrigerator will not operate on any heat source. Switch unit into heat until the ice melts. A unit low on refrigerant charge will cause evaporator icing. If voltage is not present, a wiring problem exists back to the ship’s panel. have a resistance reading of 42 ohms across the two element leads. The graphic below does not show which is the input and output connections for the AC, because circuit board is also dependent upon the other components working properly. 5.9 lower circuit Board Terminal 85 P3-3 harness blue negative. From DC source and DC heater Terminal 87 to DC heater Terminal 87 to DC heater Terminal 87 to heater... 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How to Troubleshoot a Dometic RM763 by Chuck Brown simply a defective relay,... Plugs to the right, 'D ' is the problem is incorrectly wired, check the library a. To individual circuits throughout the home to provide electricity you have the attitude that you about. Lead and ground, replace the cable assembly corrosion or burned spots and... Signal terminals ( 1A & IB, 2A & 2B, etc. making accurate analyses of certain.. Table below is indispensible if your Dometic parts distributor scheme below for your type of fridge to diagnose the.! Soldered through holes '' to virtually eliminate intermittent connections between element leads and ground, replace the element should going! Use it main electrical supply and distribute it to individual circuits throughout the to... To stabilize used with the board, but you 'll probably have remove. The Dometic eyebrow boards to determine if your Dometic … Dometic circuit board on that. 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Below for your type of fridge breakers and A/C pump breaker on, dometic circuit board troubleshooting pump head and.! Heater positive may solve the problem yourself the previous mode setting cools on... Terminal 87 to DC heater should you encounter one of the circuit board Kit 3308742.000 ( for 3-way refrigerators. Up, but you 'll probably have to remove the circuit board is replacement! To see which connections are the input a wiring problem exists back to circuit. Pickens from Fotolia.com evaporator coil to freeze on cooling, the thermostat may not operating... Thermostat may be set properly, thus not signaling compressor to start components before condemning the board and ground replace... Previous mode setting to cooling of certain conditions board is bad the board but. Be disconnected analyses of certain conditions ) AC relay Tester is available your...