I want to change out an HOM 1-pole breaker with an HOMT 1-pole breaker. (The HOMT is a tandem-type breaker that would add an additional circuit breaker to accommodate an additional circuit in the single space.) However, I cannot get the HOMT breaker to fully seat in the panel.
Is there any trick to getting the tandem breaker to seat? I have examined the mating surfaces and I cannot see any difference in design that would prevent full seating. I even tried plenty of force (which usually doesn't let me down).
Any suggestions?
Thanks in advance.