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MVHR ventilation unit
MVHR unit fault codes

Brink Climate Systems MVHR unit faults: fault codes, causes and parts

All 62 fault codes for Brink Climate Systems MVHR units, plus the faults that show no code. Type your code or choose your symptom.

In brief

A fault on an Brink Climate Systems MVHR unit usually means that the appliance has locked out or is reporting a fault code. Note the code on the display and look it up below: for each code you will find its meaning, checks you can safely do yourself and the parts that are often checked or replaced. Frequently searched: E106 (the temperature sensor that measures the outdoor…), E100 (supply fan pressure sensor defective), F9 (the temperature sensor that measures the temperature…). No code? Check the power supply, the settings and the filters, and reset once. If the fault comes back, call in a qualified professional.

Most searched Brink Climate Systems faults

These are the codes that visitors to this site search for most often.

See the 25 most searched fault codes of 2026, with the figures behind them →

Brink Climate Systems MVHR unit faults without a code on the display

Not every fault shows a code. These are the symptoms we come across most often with Brink Climate Systems appliances, with what you can check yourself before calling someone out.

Filter message stays on

Replace the filters and then reset the counter on the control panel; without a reset the message stays on. Which filter set you need depends on the type and year of manufacture. View the matching parts → Read also: which MVHR filter set fits your unit →

Unit is noisier than before

Start with the filters: dirty filters make the fans run harder. If the noise persists, the fan bearings are often worn or there is dirt in the impeller. View the matching parts → Read the full explanation: MVHR unit making noise →

Draughts or cold air

In a properly working MVHR unit, the fresh air is preheated by the extracted air. If the supply air feels cold, the heat exchanger is dirty, the bypass is open or the pre-heater is faulty. View the matching parts → Read also: cold supply air – bypass or heat exchanger? →

Condensation or damp in the house

Usually the airflow is too low: dirty filters, a clogged duct or a unit stuck on the lowest setting. Have the air volumes measured if cleaning does not help. View the matching parts → Read also: which MVHR filter set fits your unit →

All 62 Brink Climate Systems MVHR unit fault codes

CodeCause
103Bypass
104Fan (lockout fault)
106Outdoor air temperature sensor (lockout fault)
107Extract air temperature sensor
109CO2 sensor
111Humidity sensor
113Preheater
1144-position switch; short circuit between connections
115Plus PCB defective (lockout fault)
11714-pin connector X5 not connected (lockout fault)
E000* (Subcode E1013)Outdoor air temperature too high
E100Supply fan pressure sensor defective. Red pressure tubes blocked or kinked.
E100Supply fan pressure sensor faulty. Red pressure tubes blocked or kinked.
E101Extract fan pressure sensor faulty. Blue pressure tubes blocked or kinked.
E103Bypass defective
E103 (Subcode E1200)Bypass faulty; general error message
E104Extract fan defective.
E104 (Subcode E1012)Requested extract flow rate is not achieved
E104* (Subcode E1120)Extract fan faulty; general error message
E105Supply fan defective
E105 ((Subcode E1011)Requested supply flow rate is not achieved
E105 (Subcode E1011)Requested supply flow rate is not achieved
E105* (Subcode E1100)Supply fan faulty; general message
E106The temperature sensor that measures the outdoor air temperature is faulty.
E106The temperature sensor that measures the outdoor air temperature is defective.
E106* (Subcode E1300)Sensor NTC1 faulty; general error
E107The temperature sensor that measures the extract air temperature is defective
E107The temperature sensor that measures the extract air temperature is defective.
E107The temperature sensor that measures the extract air temperature is faulty
E107* (only on type 450 & 600)Sensor NTC2 faulty; general error
E108If present: The temperature sensor that measures the external temperature is defective
E108If present: The temperature sensor that measures the external temperature is defective
E109Fault on connected CO2 sensor
E109Fault on connected CO2 - sensor
E111RH sensor defective
E111If present: RH sensor defective
E111 (Subcode E1400)RHT sensor 1 defective; general message
E113 (Subcode E1600)Internal preheater faulty; general error message
E114 (Subcode E1500)Speed switch faulty; general error
E115 (Subcode E2000)General error message
E1155 (Subcode E2000)Touchscreen error; general error message
E120 (Subcode E2100)eBus error; general error message
E121 (Subcode E2200)Internal bus general error message
E121(Subcode E2200)Internal bus general error message
E122 (Subcode E2300)Internal ModBus error; general error message
E123 (Subcode E2400)External ModBus error; general error message
E124 (Subcode E2500)USB port general error message
E130 (Subcode E1800)Relay output 1 faulty; general error
E152* (Subcode E1001)Flash memory defective
E153 (Subcode E1002)EEPROM memory defective
E170 (Subcode E2600)One or more CO2 sensor(s) defective; general error message
E171 (Subcode E2700)External preheater or thermal fuse faulty; general error message
E172 (Subcode E2800)External after-heater or thermal fuse faulty; general error message
E190 (Subcode E1000)Self-test not passed
E999DIP switches on control PCB not set correctly.
E999DIP switches on control PCB not set correctly.
E999DIP switches on control PCB not set correctly.
F1The CO2 sensor that measures the air quality of the extract air is defective. The unit runs on the basis of basic ventilation.
F10The humidity sensor that measures the relative humidity of the extract air is defective. The unit operates normally but no longer controls on the humidity sensor. Unit runs on basic ventilation.
F2The supply fan is at a standstill. The extract fan also stops in this case.
F5The extract fan is at a standstill. The extract fan also stops in this case.
F9The temperature sensor that measures the temperature of the intake outdoor air is defective. Both fans are at a standstill.

Order parts for your Brink Climate Systems MVHR unit

Brink Climate Systems parts are available from Instalpunt; shipping to EU countries from €17.95 (€24.95 for more distant countries), usually 3–5 working days.

View Brink Climate Systems parts →

Frequently asked questions about Brink Climate Systems faults

What does a fault on an Brink Climate Systems MVHR unit mean?

The appliance is reporting that it has shut itself down or cannot continue. The code on the display points to the group of causes: ignition, water pressure, a sensor, the fan or communication with the thermostat. The table above shows, for each code, what Brink Climate Systems means by it.

How do I reset my Brink Climate Systems MVHR unit?

The reset button is on the control panel of your Brink Climate Systems MVHR unit; on most appliances you hold it down for two to five seconds until the display responds. Reset once. If the same fault comes straight back, resetting will not solve it and a part or a setting needs attention. Always consult the manual for your model: the position of the button and how long to press it differ per series.

Can I fix a Brink Climate Systems fault myself?

You can top up the water pressure, bleed the system, replace filters and clean a siphon yourself. Anything behind the sealed section of a gas appliance is a different matter: work on the gas valve, burner, heat exchanger and flue must be carried out by a certified gas engineer.

How much does it cost to fix a fault?

That depends on the cause and whether a part is needed. With us you can see the part straight away with its price and delivery time, so you know where you stand in advance. If you call in an engineer, always ask about the call-out charge and hourly rate before they come.

Where can I find the right part for my Brink Climate Systems?

Check the rating plate for the exact type and use it to search our catalogue, or search directly by the manufacturer number of the faulty part. Each part lists the appliances it fits.

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