Does pool pump need to be running for heater to work?

JuYuHu

Well-known member
Mar 7, 2017
97
Houston, TX
#1
We are turning on the heater for the first time. It seems to make sense for the pool pump to be on for the warm water to return, but we didn't get specific instructions on this so just double checking! Thanks!
 

pooldv

Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
Aug 10, 2012
24,993
DFW, TX
#4
Yes, heaters have a pressure switch to check for water flow as a safety feature. Heaters cannot heat without water flow or they will overheat and break stuff.