You mean it is frozen, the overflow discharge pipe(about 3/4" in diameter) frozen in basement? # S: {. {. G9 r& k' j& p( ^: U5 D: e3 L6 u5 u' K( G
Anything related to water frozen in basement is a serious issue, it has to have immediate attention.
Few minutes work if just the safety expansion valve leaks ( most probably only the valve) 7 P, x4 _! |; i, B. M# R+ |2 D; \1 E
Close the main water inlet valve;" e) V; ]3 Q0 l
open all faucets in the house including showers to drain all water out in the pipe line;: _% Q4 _ O. q+ J
Close the cold water valve to the water tank if you have one;( v: `/ A) t7 p. r4 e: H) k7 }
Shut down the hot water tank by closing the temperature switch to off;& D0 ?7 D- t5 A: k
Open the drain valve at the bottom to drain all the water out;" H/ Y* ]/ O7 U# g, M& o) k5 R& n* A
Then remove the expansion valve, go to home or Canadian tire. they all have one. + ]! Q; V" R) C- Q& X) Q0 T2 }! @1 ?6 u' n
Any doubt text me at 780-880-26984 Y2 m$ F! V5 ~9 C# l8 `5 M; h
sorry I thought you were talking about a hot water tank.... 8 p0 y& p# \0 Z" W9 \: `2 T) @4 h* `+ v) y% w
The humidifier is even simpler. The drain hose is supposed to have water go thorough the humidifier filter inside the housing and then goes to drain when furnace is on. t% v) h: _5 F C# Q3 i- a E1 r( K* z; H
If there is no crack at the housing connector, just re-do the connection when the furnace is off. 8 y. D' C: R# @* D ( h7 P% |7 Y" X* z+ ~) K) K) BNot a big issue..