LG Therma V CH35 fault code

What it means

Low-pressure error (evaporating pressure low)

Safety: R32 is A2L mildly flammable — leak-check with suitable equipment and ventilate.

UK models this code applies to

From the LG service literature we hold (LG AWHP Service Manual MFL68682007 (© 2020, R32 Therma V) — error codes + component tables; scope: code SET & fan figure whole-range, compressor winding confirmed 12/14/16 kW, thermistor tables part-level) — not a scraped list.

Now the harder half: proving what caused it

CH35 names a symptom, not a root cause. In the app, the same code opens a guided investigation: what to measure first, the expected values for your exact model, and an honest verdict — including “nothing in this machine is broken” when that's what the readings say.

Free, no sign-up. Pick the model and follow LG Therma V's own chart for it, one question at a time.