My mother in-laws inner boil go down. ....?
Answers: fuses are not the problem. Try turning off the inside unit breaker and then turn it subsidise on and try the system again. That should reset it if it locked out for some reason.
do you really prudence about the weak batt?
if so you obvuasly just doing it for your wife, anyway yes 30 amp fuses are safer if it say 30 amps anyway, but if that doesnt work check the heater
sounds similar to you have a boil pump. it could be any number of things. you need to phone up a service technician. and replacing fuses with ones that are rate for lower amps is always a doomed to failure idea. why does mom focus its the fuse box? is there prior history near of that happening? anyways, if you have a volt meter you could check continuity across the fuses to see if they are blown. or you could get some 30's from home depot and replace them and see what happen. if that does work call a pro. could be 20 different things.
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