- HVAC
- Air conditioner
EH60
Johnson EH60 on an air conditioner: indoor ambient sensor T1
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Low
Quick answer
On Johnson PREMIUM2 wall-mounted splits, EH60 means the indoor ambient temperature sensor T1 is open or short-circuited. Wait, restart once and, if it stays, call the service technician.
Safety first
Stop and check this first
- Johnson says to switch off at once and not try to repair the unit yourself if the cable is damaged or very hot, there is a burning smell, loud noises or the breaker trips often: contact an authorised service. These units may use R32, a flammable refrigerant.
Safe checks you can perform
- Code on the display or flashes
- The wait and restart Johnson describes
- Measuring sensor T1
Leave these tasks to a qualified professional
- Do not attempt this professional task: Measure before replacing sensor or board
- Do not attempt this professional task: Test after the repair
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Measure before replacing sensor or board
What they doThe technician measures sensor T1 and checks its connector before replacing anything.
They must show youthe measured sensor value against the specification.
In writingwhich part was replaced and why.
Test after the repair
What they doThe technician runs the unit and checks it controls the temperature without showing EH60 again.
They must show youthe unit running with no code.
In writingdate and result of the test.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Code on the display or flashes
- Who:
- you.
- How:
- look at the indoor unit display; if it shows no letters, count the flashes of the operation indicator with the TIMER indicator off.
- Result that matters:
- EH60, or 6 flashes of the operation indicator per the PREMIUM2 table.
- If the display shows EH60:
- it is the ambient sensor T1; carry on with this page.
- If you only see 6 flashes:
- it may be EH60 or EH61; tell the technician so they can read it.
- Evidence to keep:
- a photo or short video of the display and indicators, with the date.
Evidence: Johnson split pared serie PREMIUM2: códigos de error
The wait and restart Johnson describes
- Who:
- you.
- How:
- Johnson says that if an EH, EL or EC code appears you should wait about 10 minutes because it may clear by itself; if not, disconnect the power, reconnect it and switch the unit on.
- Result that matters:
- whether the code clears after the wait or the restart.
- If it clears:
- note the date and time; if it returns, tell the technician.
- If it persists:
- Johnson asks you to disconnect the power and contact the service centre.
- Evidence to keep:
- a note of the time, the wait and the result of the restart.
Evidence: Johnson split pared serie PREMIUM2: manual de usuario
Measuring sensor T1
- Who:
- an air conditioning technician.
- How:
- with the power isolated, checks the T1 sensor connector and measures the sensor against the manufacturer's specification.
- Result that matters:
- whether the sensor is open or shorted or measures correctly.
- If the sensor measures out of specification:
- the sensor is confirmed as the cause.
- If it measures correctly:
- the cause is in the connection or the board; the sensor is not replaced.
- Evidence to keep:
- a job sheet with the measured value against the specification.
Requires opening the indoor unit with the power isolated: technician only.
Evidence: Johnson split pared serie PREMIUM2: códigos de error
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- HVAC
- Brand
- Johnson
- Product type
- Air conditioner
Known code variants
- EH 60
- Johnson EH 60
- Johnson EH60
What it means
Johnson assigns EH60 to sensor T1, which measures indoor ambient temperature, when the control detects it as open circuit or short circuit. Without a display it shows as 6 flashes of the operation indicator, the same as EH61 (evaporator coil sensor T2), so it is worth reading the code on the display. The code does not prove the sensor is broken: an open or shorted reading can also come from its connection, and the technician checks it by measuring.
Warnings and stop conditions
- Highsource verified
Johnson says to switch off at once and not try to repair the unit yourself if the cable is damaged or very hot, there is a burning smell, loud noises or the breaker trips often: contact an authorised service. These units may use R32, a flammable refrigerant.
Evidence: Johnson split pared serie PREMIUM2: manual de usuario
Symptoms and causes
Probable causes · in order
- Sensor T1 open circuitPossible
Johnson includes open circuit: the sensor or its connection gives no reading. The technician tells it apart by measuring the sensor off the circuit.
Evidence: Johnson split pared serie PREMIUM2: códigos de error
- Sensor T1 short circuitPossible
The other condition Johnson gives. It is confirmed the same way, by measuring the sensor; if it measures correctly, the cause is in the connection or the control.
Evidence: Johnson split pared serie PREMIUM2: códigos de error
Virtual technician
Does EH60 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Johnson split pared serie PREMIUM2: códigos de error
Johnson · 2026 · official_doc
- 2
Johnson split pared serie PREMIUM2: manual de usuario
Johnson · 2023 · manual
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