Find the right heat pump part before you order — not after
For trade buyers who need a part that fits the first time. Start from the symptom or the category, check the system information, then send one inquiry with everything needed for a quotable answer.
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This is a Vercel preview. It is not yet connected to heatpumppart.com, and the inquiry form backend is not yet connected — submitting the preview form does not send an inquiry.
Start with what you already know
Most failed orders are missing information, not missing parts. A quotable inquiry includes:
- System brand and model from the nameplate
- Existing part identification, if legible
- Voltage, and for the category, capacitance, current or temperature range
- Connector, terminals, dimensions and mounting
- Refrigerant type, where relevant
Find a part by model keyword or symptom
Trade-buyer search for this preview site only. Type a system or part keyword, or pick a symptom. Results filter to a category page — they do not check stock, price or a specific model match.
Quick tries:
No match? Use the inquiry page with your system brand, model and existing part details. No order is placed by a search.
Who this site is for
Installers
Replacement parts for service and repair jobs, where model compatibility and correct voltage matter more than speed alone.
Service and maintenance companies
Recurring parts for systems you already maintain, checked against the system information you provide.
Distributors
Category-level sourcing inquiries for the light parts that move most often in heat pump service work.
Start from the symptom
Competitor parts sites do this well: they map a symptom to a shortlist, then force a specification check. We borrow that structure — not their stock, prices or authorisations.
Outdoor unit hums, will not start
Check first: Capacitors, then Contactors. Confirm capacitance, voltage and terminals from the old part.
Unit dead, no response to thermostat
Check first: Contactors, Controllers, then Thermostats. Confirm coil voltage, staging and wiring.
Wrong temperature, erratic heating or cooling
Check first: Sensors, then Thermostats. Confirm sensor function, range and connector.
Repeated control faults or defrost problems
Check first: Controllers and Sensors. Do not order a board by appearance alone.
Request a Quote Check Compatibility First
Part categories covered at launch
We start narrow, on purpose. These five light categories are commonly replaced in heat pump service work and can be checked without sealed-system work. Heavy parts such as compressors and reversing valves are not in scope at launch.
Sensors
Temperature and pressure sensing for operation and fault diagnosis.
Check: function, range, connector
Controllers
Control boards and modules for heating, cooling and defrost cycles.
Check: model, voltage, wiring
Capacitors
Start and run capacitors for fan motors and compressors in service work.
Check: µF, voltage, terminals
Thermostats
Room and system controls for heating, cooling and auxiliary heat.
Check: staging, terminals, power
Compare the five launch categories
One page per category, same structure as the leading parts sites: use, failure signs, specification checklist, common mistakes. No prices or stock are shown — those are confirmed on inquiry, after the system information below is checked.
| Category | First check | Send with your inquiry |
|---|---|---|
| Sensors | Function and location | Range, connector, cable |
| Controllers | System model | Voltage, wiring, staging |
| Capacitors | µF and voltage on the old part | Terminals, shape, mounting |
| Contactors | Coil voltage | Poles, current, terminals |
| Thermostats | Staging and wiring | Terminals, power source, auxiliary heat |
How a quote is checked — before any order
Every inquiry starts from system brand and model, the way trade parts lookups work — not from appearance.
Each category page lists the fields that must match. Missing information is flagged, not guessed.
Five light categories only at launch, so a match can actually be checked. No sealed-system parts, no retail checkout.
No SKU, price, stock level, lead time, certification, warranty or customer case is published, because none has been confirmed.
How an inquiry works
Or start from the symptom above. Read that category page first.
Use the Compatibility Guide to gather model, voltage and connector information.
Include system and part details on the inquiry page. Specifications and pricing are confirmed on inquiry.
Do not treat a preview-form submission as an order. No order is placed until specifications are confirmed in reply.
What we do — and what we do not promise
| We do | We do not promise (yet) |
|---|---|
| Check model, voltage, refrigerant context and connector information before quoting | Stock levels, fixed prices, lead times or same-day dispatch |
| Explain, per category, what must match and what commonly goes wrong | Brand authorisation, certifications, warranties or customer cases — none are claimed here |
| Keep the launch scope narrow so a match can actually be checked | Heavy sealed-system parts, or a checkout for retail buyers |
Frequently asked questions
Where is the model number?
Usually on the outdoor unit nameplate, and often on indoor unit documentation. If the label is faded, include a photo of the nameplate and the existing part where it is safe to do so, plus any paperwork model reference.
Can I order by appearance?
No. Similar-looking parts can differ in rating, connector, size or control behaviour. Use the category checklist and the guide before sending an inquiry.
Do you sell to homeowners?
This site is built for trade buyers. Refrigerant and high-voltage work should be carried out by qualified technicians in line with local regulations.
Why are there no prices on the site?
Because no supplier or product dataset has been confirmed yet. Publishing prices or stock before that would be misleading. Specifications and pricing are confirmed on inquiry.
Request a Quote About HeatPumpPart
Safety note: Refrigerant and high-voltage work should be carried out by qualified technicians in line with local regulations.