Condensate Drain Pumps

The air conditioner condensate drain pump is a small but critical component that carries the condensate water collected in the indoor unit out from points where it cannot be drained by natural gravity fall. A correctly selected pump prevents water overflow, wall stains and PCB failures; a wrongly selected pump means noise and repeated service calls. At Yedepa you can find condensate drain pump models for cassette, wall-mounted (split) and floor-standing air conditioners in one place.

Choosing a Drain Pump by Air Conditioner Type

• Cassette type air conditioners: Models concealed in the ceiling and operating with a float reservoir are used. The WH-XPA-7A cassette type air conditioner drain pump is the most preferred solution in this class.
• Wall-mounted (split) type air conditioners: Low-noise mini pumps that fit inside the decorative trunking are recommended. The Otto Cool A2 ultra-quiet wall-mounted pump (40 l/h) and the slim-bodied Artiko Mute Slim condensate pump are the featured models of this group.
• Floor-standing air conditioners: Models with a large reservoir volume are required for higher condensate flow rates; the Techsun TCTD-20 floor-standing drain pump is designed for this need.
• Service kit / general purpose: The Value M1 condensate pump is a practical solution that service companies carry as a spare, thanks to its compatibility with different indoor unit types.

Three Technical Values to Check When Choosing

1. Flow rate (l/h): The amount of water the pump can move per hour. As capacity (BTU) increases, the amount of condensate increases; a pump with insufficient flow rate cannot keep up with the float level and causes overflow.
2. Suction and discharge head (m): The distance over which water can be moved vertically. If the drain line rises into a suspended ceiling or to the floor above, this value is the deciding factor in the selection.
3. Noise level dB(A): For bedroom, office and meeting room installations, "silent" series models with a low dB(A) value should be preferred.

You can compare these three values in the technical specification tables on the product pages and identify the model that suits your air conditioner capacity.

Fault or Replacement?

Pump rattling, intermittent operation or water dripping from the indoor unit usually indicate a drain pump fault. To distinguish the symptoms and for step-by-step replacement, you can read our air conditioner drain pump fault and replacement guide. We keep the models that technicians and service companies replace frequently during the season together in the catalogue, and make it easy to match the right part for bulk requirements using the compatibility information on the product pages.