For technical accuracy

While some mounting patterns may appear similar across generations

Common Questions What does it mean if the LED on the 100108926 is not flashing

fitting E1EH and E1EB series electric furnaces

Replacing the old sensor typically restores consistent pilot operation

Lochinvar & A.O. Smith 100112662 High Limit Els PW 29614 For technical accuracyThe Lochinvar & A. O. Smith 100112662 High Limit is a critical OEM safety control designed to prevent terminal damage in high output commercial and residential heating systems. Engineered for hydronic boilers and gas water heaters, this 165 degree limit switch monitors internal temperatures and breaks the electrical circuit if limits are exceeded. As a manual reset safety switch, it requires technician intervention to investigate the root cause of an