If it has a round silver solenoid/relay with two large terminals and one small terminal, it is probably the same cheap 80 amp unit Winnebago uses. They fail often.
Everyone with one of those in a Winnebago replaces them with a Cole Hersee 24213 which is 200 amp continuous rated and has silver-tungsten plated contacts instead of plain copper ones that burn up easily. It has four terminals, the coil ground is made externally in it rather than internally like the cheap three terminal one. You simply run a ground from one of the small terminals to the mounting bolt or good ground and hook the existing small wire to the other small terminal, you will never again need to replace the solenoid/relay.
Less than $50 on Amazon.
Amazon Cole Hersee 24213 relayCharles
