Converter and Other Electrical Problems - Rockwood HW256
I recently purchased a 2005 Rockwood HW256 as my first popup, and have been getting it ready for our first trip this weekend. Last evening I realized my converter may not be working. Appreciate any guidance or recommendations on how to best proceed. Let me explain the symptoms:
- when I brought it home (purchased used from a private seller) the battery was dead, so I put my auto charger on it for a couple days. I also had it plugged into shore power. The battery was fully charged, maybe a little over charged; showed 13.6V when done. During this time I came to realize that the only things not working were the Thetford C2 toilet flush motor and overhead exhaust fan. All else seemed to work fine, lights were nice and bright, water pump worked, heater fan runs, etc.
- I wanted to check the converters ability to charge the battery, so I ran down the battery by disconnecting the auto charger and shore-power, and ran the water pump off the battery to de-winterized the camper. I also operated the overhead lights off the battery. After a couple days I started getting a Low Voltage/Fault light/chirp from the gas detector. I checked battery voltage at the terminals and was down to 9.3 V. I plugged in shore-power and over 24hrs the battery voltage was up to 11.6V.
- Maybe a red herring, but while trying to trouble shoot the exhaust fan over the weekend, I measured the voltage at the wire splice which goes into the ceiling (my guess for the lights and fan) near the canvas wall/ceiling above the converter, and it was 6.4V. Hmmm....seems low?
- Last night I went into the trailer while on shore-power, battery voltage 11.4V, and turned on the lights and everything looked dim. I start getting a chirp/red light from the Low Voltage/Fault from the panel. Then I turn the light off, the alarm goes away. I also checked the trailer AC outlets and all read 120V, and no fuses are blown in the converter front panel.
- Now I start thinking that there may be something wrong with the converter. I disconnect the battery, while still connected to shore-power, and the lights no longer work in the trailer. I thought to converter would transform the 120V AC to 12V DC in the absence of a battery, or am I missing something?
Please help. I think there may be multiple issues going on. Thanks