Question about Water Heaters
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Posted on Jan 02, 2017
SOURCE: boiler overheating
the problem there a relay stuck or thermostat bring on the pump & you can lower your high limit aquastat!! also the flow valves can bypass hot hot water risers time to put in a seperate water heater domestic coil are not energy efficient !!!! aquastat high limit set @ 180f deg low limit set @ 140f deg!!!
good luck!!! tim
Posted on Oct 18, 2008
SOURCE: boiler shuts down repeatidly
i think you will find that instead of modulating as demand requires the boiler is overheating and then re operating after the safety thermostat has operated.
i wilud put some de scaler into the main heat exchanger circuit or add it to the radiators and let it circulate for a while.
also make sure the pump is operating properly to ensure proper water flow.
Posted on Nov 29, 2008
you could have a flow problem due to sludge or scale in the boiler, it could be a pump problem as it may not be circulating enough water around the system. or it could be a faulty thermostat if it is not cutting out soon enough.
1st try turning the boiler stat down to its minimum, if it still over heats then it is probably the stat.
if you have a switch on your pump to increase the speed make sure it is on setting 3. if the pump is old then it may be time for a replacement.
Posted on Mar 30, 2009
thermostat on the gas valve needs to be replaced,, which you will probly have to change the hole gas vale ,, check on the parts and labor and if it is over 6 years old wheigh the diffrence between it and a new unit good luck
Posted on Jun 10, 2009
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