Jun 17, 2020 · Hey guys I’ve got a 120volts to 24volts transformer ..I need to ground the secondary 24 volts side, but there’s no indication on the transformer or from the manufacturer on which one of the …

May 4, 2004 · Hi Everyone, I had a question regarding a 250 volt transformer thats step down voltage to 24 volts. If I am reading 32 volts or more ,is the transformer bad?

Sep 18, 2025 · Hey guys I’ve got a 120volts to 24volts transformer ..I need to ground the secondary 24 volts side, but there’s no indication on the transformer or from the manufacturer on which one of the …

Jun 15, 2006 · I have a 24 volt tansformer that blows intermittently and I want to protect it with fuses(3.2 amp). My question is which side to put fuses on, 208 volt side or 24 volt side?

Jun 22, 2005 · service call states ac doing nothing, flip t-stat to fan on, nothing, check transformer shows 110 on primary side and 0 on secondary, 24 volt side, changed transformer, turn t-stat back to auto …

Jul 23, 2013 · Hey Everyone, Working on a Carrier RTU unit model# 48TCEA06A2A5A0A0A0. Customer complaint "thermostat has no power." Found 5 amp breaker tripped on transformer. …

Jul 24, 2009 · Every 24 volt transformer I have ever tested that has had a burnout failure due to a short in the 24 Volt Secondary circuit has burned out the 240 Volt Primary winding. I was just curious why …

Dec 30, 2023 · The JCI control panel with transformer (120 to 24) we purchased doesn't have the secondary grounded. Then we purchased a newer transformer to replace the one in our MMC (600 …

Jan 17, 2014 · Twice this unit's has control transformer and heat strip contractor coils have burned out? The unit is a 3P 240 HP. There are a total of four units at this facility and this is the only one that is …

Mar 6, 2013 · Its completely dead at the thermostat, and on the circuit board it doesnt get 24 volts either. So I tested voltage going into the transformer and it has 120 volts on all 3 wires going in but it only …