Is my aq120b overheating

Holy Shamolee

Petty Officer 3rd Class
Joined
Jul 18, 2009
Messages
75
Well, I got my new temp sensor in and stopped the leak.
I start my unit up and let it run.
my temp sensor works its way up to 220. But I dont think it is overheating.
Do these temp gauges ever go bad??
If I leave rad cap off the expanson tank, It doesnt boul over.
I put my wifes turkey thermometer in the top of the expansion tank and it never gets up to 190. You can see it warm up and cool off and warm up and cool off over and over again, I think this is the thermostat opening and closing.
Ive never heard of a temp gauge breaking, but other than that I am at a loss..
 
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