Single pole.
If it is a single click, from time to time, it is the thermostat cycling on and off, and it is normal.
Of course a water heater thermostat would be defective as water heaters / hydronic boilers would use an Aqua Stat
No, BUT they do have an AQUA stat
Someone turned up the thermostat, or the thermostat has failed. The thermostat tells the heater what temp to keep the water at.
In a hot water heater, a thermostat regulates the heat
What type of thermostat (there are several, the commonest is a rod)?
raising the thermostat on the water heater
In general a water heater will only last so long.The major problems are with the thermostat and the heating element.You'll have to replace the thermostat occasionally.If the heating element goes out it's time for a new water heater.
In a hot water heater, a thermostat regulates the heat
First check the water level. Low level will not get to the heater core. Change the thermostat. If you recently changed the thermostat, bleed the coolant system.
MY CAR WAS DOING THE SAME THING NO HOT AIR COMING OUT OF THE HEATER I CHANGED THE THERMOSTAT. IT WASNT THE THERMOSTAT. I GOT TO CHECKING AND THE SEAL IN THE WATER PUMP WAS BAD. I REPLACED THE WATER PUMP AND IT WORKS FINE NOW.
Here is MY thermostat? Show ME a diagram? This is garbled and makes NO SENSE?