That will depend on how much is exposed to conditions/weather, that caused it to freeze. A good place to start is to heat valve and and piping that you suspect is frozen, with a hair dryer, or heat gun, if possible. Try to move it along entire area, rather than concentrate on one spot. Where it's located obviously will have a bearing on how you do it as well. Can you give a little description of how much pipe, etc., that you suspect is frozen, and where it located, as in access wise?
Be sure to turn the power off to your hot water heater, it can burn out if it senses demand and energizes without water supply to it. A 150 watt heat lamp aimed at the affected area along with heat tape and pipe insulation will prevent this from happening again.
Answers & Comments
That will depend on how much is exposed to conditions/weather, that caused it to freeze. A good place to start is to heat valve and and piping that you suspect is frozen, with a hair dryer, or heat gun, if possible. Try to move it along entire area, rather than concentrate on one spot. Where it's located obviously will have a bearing on how you do it as well. Can you give a little description of how much pipe, etc., that you suspect is frozen, and where it located, as in access wise?
Be sure to turn the power off to your hot water heater, it can burn out if it senses demand and energizes without water supply to it. A 150 watt heat lamp aimed at the affected area along with heat tape and pipe insulation will prevent this from happening again.
Test leaks first before you put the cover back. A hard lesson I just learned last weekend