Honeywell THM5421R1021 Equipment Interface and similar items

A refund available within 30 days unless otherwise specified and only after return is completed and I am received the item back in the same condition it bought. If item returned in different condition like missing some details, damaged or has some signs of wear restocking fee will apply.

Please contact me if you have any questions or concerns about the item as soon as possible.

Most of parts I sell are used, but in great condition on the moment of purchase. But some malfunctions may occur during continuous use. I can’t give long-term warranty on used parts.
Buyer is responsible to pay return shipping. After receiving the item back I will send you a refund. Transportation costs are not refundable. Restocking fee may apply till 20%.
Most of the parts can be sensitive to inaccurate attitude during shipping, unfortunately some accidents may happen.
If the part is not working you must contact with me in 14 days. You need to explain what exactly happened and request a return, after receiving the item back I will send you a refund.
If you’ve received a damaged item, please contact me ASAP. I am working hard to prevent that kind of situations, but sometimes accidentally it happens. To get full refund as soon as possible you must provide clear pictures as a proof of “damaged in transit”. I need as much and clear pictures as possible to start a claim with the carrier.

Most of the parts require specific knowledge or skills to be installed properly. If you don’t have skills or knowledge, you must ask qualified HVAC technician to install. I am not liable for any damages or failures as a result of improper installation.