TrailManor Owner's Forum - View Single Post - Fridge temp control fix, for AC and DC operation. (ANY model, not just N300.3)

**rickst29** · 06-03-2013, 10:16 AM

Wow, when I forget to turn on the Fridge "fan switch", that upper exterior compartment (with the hot condenser fins) absolutely sizzles on a windless day.
This can be switched ON/OFF via the PID, instead of a forgettable switch. In my configuration, where two SSR's are connected in parallel to the "Relay Output" circuit. (Pins 4-to-5) I can simply "Y" the +12V fan wire, connecting it in parallel with the "DC-Direct" power lead from PID. This way, it will work when either the exterior "DC-Direct" power is turned on (for towing), or when the inside-the-TM "Reefver Fan" in switched on.

I can't connect it directly to the PID, because the PID runs continuously as a "phantom load" in storage. If I find some "extra" computer fans lying around, I might attach them as well. (copying your upgrade). After making that change, I'll post my PID settings.

06-03-2013, 10:16 AM	#13
rickst29 yes, they hunt lions. Join Date: Aug 2005 Location: Reno, NV Posts: 1,324	You're smart to have added fans. Great idea! Wow, when I forget to turn on the Fridge "fan switch", that upper exterior compartment (with the hot condenser fins) absolutely sizzles on a windless day. This can be switched ON/OFF via the PID, instead of a forgettable switch. In my configuration, where two SSR's are connected in parallel to the "Relay Output" circuit. (Pins 4-to-5) I can simply "Y" the +12V fan wire, connecting it in parallel with the "DC-Direct" power lead from PID. This way, it will work when either the exterior "DC-Direct" power is turned on (for towing), or when the inside-the-TM "Reefver Fan" in switched on. I can't connect it directly to the PID, because the PID runs continuously as a "phantom load" in storage. If I find some "extra" computer fans lying around, I might attach them as well. (copying your upgrade). After making that change, I'll post my PID settings. __________________ TM='06 2619 w/5K axle, 15" Maxxis "E" tires. Plumbing protector. 630 watts solar. 450AH LiFePO4 batteries, 3500 watt inverter. CR-1110 E-F/S fridge (compressor). TV = 2007 4runner sport, with a 36 volt "power boost".