LG Base Pan Heater for Outdoor Unit
The genuine LG base pan heater that keeps the outdoor unit’s pan free of ice through a Québec winter.
AirGreen codeAG-AC-01701
514 316-2973 · sales@airgreen.ca
Quick facts
The LG base pan heater is a 120 W element that sits in the base pan of the outdoor unit. In heating mode, the heat pump regularly defrosts its coil and the water drips into the pan; in extreme cold, that water can freeze there and build up. LG presents it as protection against ice buildup in extreme winter conditions.
Simple protection for Québec winters
The heater's harness plugs directly into the outdoor unit's control board. The element does not turn on when the outdoor temperature is above 32 °F (0 °C): it only works when there is a risk of freezing. LG requires a clearance of at least 1-3/16 in between the element and the fan.
Three models depending on the unit
- PQSH1200: Multi F and Multi F MAX manufactured since May 2015; single-zone vertical air handlers, cassettes and high-static ducted units of 18,000 BTU/h and up manufactured since April 2017; some Multi V S units. LG also lists it for the Multi F MAX KUMXB481A.
- PQSH1202: single-zone cassettes and low-static ducted units of 9,000 and 12,000 BTU/h manufactured since February 2018.
- PQSH1203: Multi F LMU180HV and LMU240HV.
Finding the right number
Note the model and serial number of the outdoor unit. According to LG, the first digit of the serial number gives the year of manufacture and the next two, the month.
Installed by AirGreen in Greater Montréal
We install the base pan heater and connect it to your LG unit in Montréal, Laval, Longueuil, on the South Shore and the North Shore. RBQ licence 5645-9605-01. For availability or a quote, call us at 514 316-2973 or email sales@airgreen.ca with the model and serial number of the outdoor unit.
No ice in the outdoor unit’s pan
In heating mode the outdoor unit defrosts and sheds water; without a pan heater that water can freeze in the pan.
- LG Multi F and Multi F MAX outdoor units
- LG single-zone cassette, ducted and vertical air handler units
- Regions where the cold sets in for weeks, like Greater Montréal
- Units on the ground or on brackets, exposed to wind and snow
3 sizes, one page
Each size has its own AirGreen code. Tap a row to select it.
| Model | Part no. | Output | Intended outdoor units | AirGreen code |
|---|---|---|---|---|
| PQSH1200 | PQSH1200 | 120 W | Multi F and Multi F MAX built since May 2015; single-zone vertical air handler, cassette and high-static ducted 18,000 Btu/h and up built since April 2017; some Multi V S | AG-AC-01701 |
| PQSH1202 | PQSH1202 | 120 W | 9,000 and 12,000 Btu/h single-zone cassette and low-static ducted built since February 2018 | AG-AC-01702 |
| PQSH1203 | PQSH1203 | 120 W | Multi F LMU180HV and LMU240HV | AG-AC-01703 |
Each part number targets a family of outdoor units and a production period.
Specifications
From the manufacturer’s documentation. A value the manufacturer does not publish is not listed.
What to know before installing
- Each model targets specific units: the PQSH1203 is only for the Multi F LMU180HV and LMU240HV.
- The unit’s build date matters: check the serial number (first digit = year, next two = month).
- Keep at least 1-3/16 in between the heater and the outdoor fan.
- Follow LG’s base pan heater installation manual.
Manufacturer documents
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Frequently asked questions
Which heater fits my LG unit?
PQSH1200 covers Multi F and Multi F MAX units built since May 2015 and several single-zone units of 18,000 Btu/h and up. PQSH1202 is for 9,000 and 12,000 Btu/h single-zone cassette and ducted units. PQSH1203 fits the LMU180HV and LMU240HV. Send us the model and serial number and we confirm.
Does it draw power all winter?
No. LG locks it out when the outdoor temperature is above 32 °F (0 °C). The heater is 120 W.
Is it useful if my outdoor drain is well done?
Yes. The pan heater keeps defrost water from freezing in the pan itself, before it ever reaches the drain.
Can you install it?
Yes. We fit it in the pan and connect it to the unit’s board, everywhere in Greater Montréal.
Keep your LG unit’s pan free of ice
Tell us the size and the quantity: we confirm availability and send you a quote. Or let our technicians install it for you.
Specifications from the manufacturer’s documentation, checked on October 7, 2026.