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mordac_the_preventer t1_ivmlekw wrote

Why are you sure it’s not a battery issue?

I’m pretty sure that my Honeywell wireless thermostat displays “LO” when the batteries run out - they last 2-3 years though so I’ve only seen it a few times.

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captain_joe6 t1_ivmlcc3 wrote

You should be able to pull a manual for your particular thermostat and decipher the exact code, every mfg has a host of alarms that present in different ways. You won’t know more until you can decipher what you’re being told.

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d4m1ty t1_ivmlzv8 wrote

Pull the thermostat, look for make and model on the back, hit up google and found out what LO means.

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Ozzie338 t1_ivmkbl1 wrote

it sounds like a smart safety feature. call an HVAC mechanic

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Guygan t1_ivmoqt8 wrote

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