Water is too hot:
If the water coming from your heater is hotter than usual, the heater is not shutting off when it is expected to, the reason could be a faulty thermostat. Pressure and steam are building inside the heater and are not being released by the pressure relief valve. The water temperature must be decreased and the pressure relief valve must be replaced before allowing the hot water tank to reach operating temperature again
Leaks around pressure relief valve:
Leaks around the valve could suggest a number of things, including:
The pressure relief valve is loose
The seal around the threads is broken where the valve fastens into the heater
The main seal has been broken or damaged by sediment or dirt.
If the seal around the threads is creating issues, your hot water tank professional will remove the overflow, coat the threads with a sealant and fasten the valve back in. If the issue is with foreign matter in the main seal, it can be cleared by opening and closing the valve a number of times. If the main seal still leaks, then you will be recommended to replace the valve.
Boiling sounds inside the heater:
A bubbling or boiling sound inside your water heater may show that the unit is overheating and the pressure inside the heater is increasing to a dangerous level. This generally means that the overflow is blocked or stuck. Pressure relief valves that don’t open will have to be replaced.
For past several years, Edmonton Hot Water Tanks has been providing superior water heater services to customers in and around Edmonton. Contact us today for more details on maintaining water heater overflows and keeping overflows working efficiently.