TECH TIPS CONVERTER PROBLEMS & SOLUTIONS INVERTER PROBLEMS & SOLUTIONS TRANSFER SWITCHES PROBLEMS & SOLUTIONS PROBLEM: WILL NOT PASS THROUGH ON SHORE POWER. SOLUTION: T-30 check VAC coming into shore pigtails to verify voltage to the transfer switch. Also check for good connections to the transfer switch. PROBLEM: WILL NOT PASS THROUGH ON GENERATOR POWER. SOLUTION: Ensure proper voltage from generator to transfer switch. If proper voltage is getting to transfer switch, cut all power off, verify no voltage inside the transfer switch and check for debris in the relays of the transfer switch. FACT: Transfer switch will only pass-through what is wired in. Transfer switch cannot generate high voltage or spikes. TheTruth Behind CommonPower Misconceptions · Batteries are not required for WFCO converters to function. · WFCO converters are not built to withstand high voltage situations like plugging into the wrong power source, lightning strikes, or power surges. Surge protectors are recommended for protection. · Converters have no effect on 110VAC appliances or outlets. If your outlets are INOP, the converter is not the problem. Further diagnostic tests are required to find the source. · WFCO converters convert VAC to VDC only, does not invert VDC to VAC. · With any converter, the potential to trip GFCI protected poles exists. PROBLEM: RED LED WARNING LIGHT IS ALWAYS ON AND FUSE IS GOOD. SOLUTION: Ensure affected circuit wire is not touching metal or another branch circuit. PROBLEM: RED LED WARNING LIGHT WILL NOT COME ON AND FUSE IS BAD. SOLUTION: Ensure the load on the circuit is present. For example, circuit #4 bathroom lights: ensure light switch is in the on position to simulate the load being present. If switch is in the off position, the load is not present and the LED will not light up. PROBLEM: CONVERTER NOT CHARGING BATTERY, BUT ALL 12V APPLIANCES ARE OPERATIONAL. SOLUTION: 8700 Series: Check #4 fuse on WF-8712/25 or #6 fuse on WF-8735/40 (this is your battery positive). FACT: Voltage will be present on both sides of the DC fuse terminals due to the LED circuit. PROBLEM: INVERTER KEEPS SHUTTING OFF WHILE TOWING CAMPER DOW THE ROAD. SOLUTION: Check voltage of alternator of towing vehicle. Inverter will shut down at 15VDC. PROBLEM: INVERTER SHOWS ERROR CODE E-04. SOLUTION: Check battery for low-voltage or dead cell. Inverter will shut down around 10VDC. Battery voltage will be higher before the inverter is turned on. Watch battery voltage when inverter is turned on with a load. PROBLEM: INVERTER LCD SCREEN INDICATING PROPER OUTPUT VOLTAGE, BUT VOLTAGE IS LOW AT THE OUTPUT WIRES. SOLUTION: Call WFCO Tech Support for authorization to open WF-5110 to fix. Wire pulled off board of inverter during the installation process. You can receive lots of helpful technical support and news in our quarterly Heartbeat Bulletin for the RV Aftermarket by going to the WFCO website at www.wfcoelectronics.com and clicking on “Subscribe to Bulletin” in the upper right corner. Then click on “AFTERMARKET Dealer News,” enter your name and email and submit. That’s it! Subscribe to the WFCO Heartbeat Bulletin. The RV Industry’s Electrical Authority Our Power Pros™ provide expert technical support for everything the RV industry needs. Visit wfcoelectronics.com/support.
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