Manifold gauges and refrigerant cylinder on a scale beside a Spokane heat pump
Spokane, WA

Heat Pump Refrigerant Recharge in Spokane, WA | Leak Located First, Charge Weighed In to Specification

Spokane WA Heat Pump Installation is a heat pump contractor providing heat pump refrigerant recharge for homeowners and property owners across Spokane County, WA and out to the Idaho state line. Every job starts from a load calculation rather than the size of whatever came out.

A refrigerant circuit is sealed, so it does not consume refrigerant the way an engine consumes oil. If a system is low, refrigerant has escaped, and adding more without finding out where from means paying for the same visit again next season. We locate the leak first using electronic detection and, where needed, ultraviolet dye, then tell you what repairing it involves. Where the repair is economic we do it and recharge by weight. Where it is not, we say so plainly rather than selling you an annual top-up habit.

Request a quote

Tell us what you need and we will call you back.

Where an undercharged system stops coping
-20°17°32°47°65°85°100°
25°F and below

A slightly undercharged heat pump often performs acceptably in mild weather and fails to keep up once outdoor temperature falls into the twenties, because the reduced charge leaves no capacity margin exactly when the load peaks.

0Refrigerant a sealed system should consume
By weightHow the charge is set, not by pressure alone
Located firstLeak found before any refrigerant is added
Heat Pump Refrigerant Recharge Spokane

Spokane WA Heat Pump Refrigerant Recharge

What actually matters on a recharge

Refrigerant work is where corner cutting is easiest to hide, because the customer sees a working system either way.

  • Leak located electronically before any refrigerant is added to the system
  • Charge weighed in against the manufacturer's specification for the equipment and line set
  • Superheat or subcooling verified after charging against the target for the actual conditions
  • Honest assessment given when a leak repair is not economic on an older system

The most common leak locations we find are the outdoor coil, the service valve stems, brazed joints at the equipment and, on ductless systems, the flare connections at the indoor head. Coil leaks are the awkward ones, because a leaking coil often costs enough to replace that on an older system it pushes the decision towards replacing the equipment entirely. We give you that comparison rather than quietly recharging and letting you discover it a year later.

The usual approach

Connect the gauges, add refrigerant until the pressures look right, and book the customer in again next year when it happens once more.

How we do it

Find where the refrigerant went, price the repair against the alternatives, and only then recharge by weight with the result verified against target.

Electronic leak detector probe at a brazed joint on a heat pump service valve

At a glance

Leak detection
Electronic, with UV dye where needed
Charging method
Weighed in per manufacturer
Verification
Superheat or subcooling to target
Common sources
Coil, valves, brazed joints, flares
Detail

How the charge is actually set

The manufacturer specifies a charge weight for the equipment plus an adjustment per foot of line set beyond the factory allowance. Where the system can be evacuated and recharged from empty, weighing in that exact figure is the most accurate method available and removes all guesswork.

Where a full recovery is not practical, the charge is trimmed using superheat on a fixed orifice system or subcooling on a system with a thermostatic or electronic expansion valve, compared against the manufacturer's target for the measured indoor wet bulb and outdoor dry bulb conditions. Both approaches produce a defensible number. Reading pressure and judging by experience does not.

What separates a good job from an average one

  • Charging by pressure alone is unreliable, because the correct pressure depends on indoor and outdoor conditions that change hour to hour.
  • Refrigerant blends must be charged as liquid, since charging as vapour changes the composition of what enters the system.
  • Adding refrigerant to a system with a restriction rather than a leak makes it worse, which is why diagnosis has to distinguish between them.
  • Every recharge should be followed by a superheat or subcooling verification against the target for the actual conditions, not just a pressure reading.
  • Recovering and weighing the existing charge before recharging is the most accurate approach where the situation allows it.

What drives the cost of a recharge

By weightCharging method
0Refrigerant a sealed system should use
4Common leak locations checked

The visit cost is leak detection plus the repair plus the refrigerant itself. Refrigerant prices vary considerably by type, and older refrigerants being phased down have become notably more expensive, which affects the economics on older systems.

That refrigerant cost is exactly why we find the leak first. Repeatedly buying refrigerant to replace what is escaping through a known leak is the most expensive way to run a heat pump, and it is a pattern we would rather break than participate in.

How it runs

What happens, in order

Step 01

Confirm it is actually low

Pressures and superheat or subcooling are measured to distinguish an undercharge from a restriction or an airflow problem.

Step 02

Find the leak

Electronic detection is used across the coil, valves, joints and flare connections, with ultraviolet dye where the leak is elusive.

Step 03

Price the options

You get the repair cost, and where relevant the comparison against replacing the equipment, before anything else happens.

Step 04

Repair and recharge

The leak is repaired, the system is evacuated and the charge is weighed in, then verified against the manufacturer's target.

Before we arrive for a refrigerant recharge

Leak detection is the bulk of the visit, and it needs the system accessible at every point refrigerant travels.

  1. Clear access to the outdoor unit and to the indoor coil, since the leak could be at either end or anywhere between.
  2. Note when you first noticed reduced performance and whether it came on gradually or suddenly, as that distinguishes a slow leak from a sudden failure.
  3. Tell us if the system has been recharged before, when, and by whom, because a repeat recharge changes the conversation entirely.
  4. Leave the system running normally before the visit rather than switching it off, since leak detection and charge verification both need it operating.
  5. If any part of the line set is accessible in a basement or crawlspace, clear the way to it as those runs need inspecting too.

Refrigerant availability and cost are changing quickly. Our A2L refrigerant guide explains the phase-down of R-410A, what R-454B and R-32 mean for servicing, and how this affects the repair or replace decision on an older system. Read the guide.

Frequently asked questions

Why does my heat pump need refrigerant again?
Because there is a leak that has not been found. A refrigerant circuit is sealed and does not consume refrigerant in normal operation, so any system needing periodic top-ups is losing it somewhere. Finding that leak is the actual repair.
Can you just top it up for now?
We can in some circumstances, and we will tell you plainly that it is a temporary measure with a known end date rather than a fix. What we will not do is present a top-up as a repair, or set up an arrangement where you buy refrigerant annually to replace what escapes.
Where do heat pumps usually leak?
Most commonly the outdoor coil, the service valve stems, brazed joints near the equipment, and on ductless systems the flare connections at the indoor head. Coil leaks are the expensive ones and often push the decision towards replacement on an older system.
Do I need to be present while you recharge my system?
Yes, particularly because leak detection frequently produces a decision point. If we find a coil leak on a twelve year old system, that is a conversation to have with you rather than a call to make on your behalf.
Do you offer free quotes for refrigerant work?
Diagnosis and leak detection are chargeable because they are skilled work with test equipment. Once the leak is located, the repair and recharge are quoted before we proceed and you can decline.
Is refrigerant getting more expensive?
Older refrigerants being phased down under EPA rules have become noticeably more expensive as supply tightens, and that trend continues. It is one of the practical reasons a leaking older system often makes more financial sense to replace than to keep recharging.

Heat Pump Refrigerant Recharge in Spokane

Phone
509-352-6630
Quote
Free, includes the load calculation measurements
Typical duration
Coil, valves, brazed joints, flares
Service area
Spokane County, WA and Post Falls, ID

Heat Pump Refrigerant Recharge in Spokane, WA

Call for a load calculation and an itemised quote. You keep the numbers either way.

Request a quote
509-352-6630