Draft (airflow) across backside of fridge is CRTICAL to cooling process
Previous owner added fan/battery to enhance the airflow to help with cooling process.
Sounds like he used a t-stat on the condenser fin ----when fin temp reaches 135* it would turn fan on.then back off when fin temp dropped below 115*F
(typical temp range----other ranges available so only guess what that t-stat range is)
Enhanced draft is a GOOD thing for absorption fridges.....FIX/REPLACE Fan/t-stat etc
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31