Thanks to the OP too...
"Quick" weekend trip to San Diego last weekend. Hooked up, heard the humm of AC compressor running (thermostat off) no fan. Manually hit the breaker for the AC. With a high of 75°, didn't need AC. Mobile RV repair was next door, had the tech diagnose bad relay. Got the kit from RV supply place in El Cajon. Took about two hours for me to hook it up. Thanks to the OP for some Picts, just needed clarification since digital used 3 wires and analog took 6.
Works a little different from analog. Takes a few seconds for the AC and heater to respond to commands from thermostat. Where the analog was immediately on or off at the switch on the thermostat.