Service mode › Remeha

Remeha boiler service mode

How to put a Remeha boiler into service mode, so it holds maximum or minimum rate while you take combustion readings. 13 models from 6 Remeha installation and servicing manuals, each step with the page it came from.

Grouped by manual: one manual usually covers a range of outputs. The CO₂ figures are the manual's own. Set and check them with a calibrated analyser, never by eye.

Installation and High-efficiency wall-hung gas boiler Quinta Ace 30 - 45 - 55 - 65 - 90 - 115

Covers: Quinta Ace 45

Entering service mode / Full load test (MaximumPowerCH)

  1. Select the tile [ ] on the home screen.
  2. The Change load test mode menu appears.
  3. Select the test MaximumPowerCH for full load test.
  4. Check the load test settings and adjust if necessary.

From manual 7684359 - v.06 - 10012019, page 38.

Accessing the installer level

  1. Select the tile [ ].
  2. Enter code: 0012
  3. When the installer level is active, the status of the tile changes from Off into On.
  4. To leave the installer level, select the tile [ ] > Confirm.

From manual 7684359 - v.06 - 10012019, page 41.

GasCO₂ max rateCO₂ min rateCO max
Natural gas9.3%9.0%–
LPG10.8%10.5%–

CO₂ and CO from manual 7684359 - v.06 - 10012019, page 38. Check against the data badge.

The factory setting of the boiler is for operation with the natural gas group G20 (H gas). (page 36)

Remeha Avanta 12v - 15v - 18v - 24v - 30v

Covers: Avanta 15v

GC 41-288-13

Force Full Load (H3)

  1. Press the [enter]-key, keep it pressed and also press the [+]-key until [H][3] appears in the display.

From manual 120579-130711, page 29.

Enter Service Level / Change Parameters

  1. Press the [enter]-key and briefly the [reset]-key until codes [C] and [0] appear alternately in the display.
  2. Press the [+]-key until access code [1][2] is displayed.
  3. Press the [enter]-key until [P][1] appears.
  4. Press the [enter]-key to select a parameter value.
  5. Press the [+] or [-] key to change the value.
  6. Press the [enter]-key to confirm the value.
  7. Press the [reset]-key to return to operating mode.

From manual 120579-130711, page 35.

GasCO₂ max rateCO₂ min rateCO max
Natural gas8.8% ± 0.38.8% ± 0.3–
LPG10.3% ± 0.310.3% ± 0.3–

CO₂ and CO from manual 120579-130711, page 78, 79. Check against the data badge.

The Avanta boiler has been live test fired on the production line and set up for Natural Gas with an inlet gas pressure of 17-20 mbar whilst operating and should therefore not require any further adjustments. (page 26)

Remeha Avanta Range

Covers: Avanta Plus 18s System, Avanta Plus 24s System, Avanta Plus 30 S System, Avanta Plus 35c, Avanta Plus 39c, Selecta

GC 41-288-01, 41-288-05, 41-288-11, 41-288-12, 47-673-03, 47-673-04

Enter Service Level / Access Parameters

  1. Press the [enter]-key and briefly the [reset]-key until codes c and 0 appear alternately in the display.
  2. Press the [+]-key until access code 12 is displayed.
  3. Press the [enter]-key until p1 appears (codes p [ and [ 1 are displayed alternately).
  4. Press the [+] or [-]-key to select the desired parameter, then press [enter] to view or modify its value.
  5. Press [enter] to confirm the new value, and press [reset] to return to the normal operating mode.

From manual 120577, page 40.

Force Maximum and Minimum Rate (Full Load / Part Load)

  1. To set full load (h3): Press the [enter]-key, keep it pressed and also press the [+]-key until h3 appears in the display.
  2. To set part load (l3): Press the [enter]-key until l3 appears in the display.
  3. Press the [reset]-key to return the boiler to normal operating mode.

From manual 120577, page 32.

GasCO₂ max rateCO₂ min rateCO max
Natural gas8.8% ± 0.38.8% ± 0.3200 ppm
LPG10.5% ± 0.310.5% ± 0.3300 ppm

CO₂ and CO from manual 120577, page 32, 46. Check against the data badge.

The boilers are supplied as standard set for natural gas (G20), therefore the following procedure must be carried out BEFORE the boilers are fired and commissioned for the first time on propane: Fit the conversion kit (instructions included in kit), adjust the fan speed and adjust the gas/air ratio. (page )

Remeha Avanta Range 12v | 18v | 24v

Covers: Avanta 12 V, Avanta 18V, Avanta 24 V

GC 41-288-06, 41-288-09, 41-288-10

Enter service level parameters (access code 12)

  1. Press the [enter]-key and briefly the [reset]- key until codes c and 0 appear alternately in the display.
  2. Press the [+]-key until access code 12 is displayed.
  3. Press the [enter]-key until p1 appears (codes p [ and [ 1 are displayed alternately).

From manual 120579, page 36.

GasCO₂ max rateCO₂ min rateCO max
Natural gas8.8% ± 0.38.8% ± 0.3–
LPG10.3% ± 0.310.3% ± 0.3–

CO₂ and CO from manual 120579, page 41. Check against the data badge.

The Avanta boiler has been live test fired on the production line and set up for Natural Gas with an inlet gas pressure of 17- 20 mbar whilst operating and should therefore not require any further adjustments. (page 26)

Remeha Quinta 30; Remeha Quinta 45/65

Covers: Quinta 30

Enter Service Level

  1. Press the ‘m’- and ‘s’-keys simultaneously and hold.
  2. Set the t-display to 12 using [+] or [-]-keys.
  3. Press ‘e’-key to confirm.
  4. Display will flash twice to confirm.

From the installation and servicing manual, page 22.

Forced Max/Min Rate

  1. Forced full load (h[[): Press ‘m’ and [+]-key in operating mode.
  2. Forced part load (l[[): Press ‘m’ and [-]-key in operating mode.
  3. Exit: Press [+] and [-]-keys simultaneously.

From the installation and servicing manual, page 14.

GasCO₂ max rateCO₂ min rateCO max
Natural gas9.5% ± 0.1––
LPG10.7% ± 0.1––

CO₂ and CO from the installation and servicing manual, page 51. Check against the data badge.

The boiler is supplied as standard set for natural gas, therefore an adjustment to the gas valve and the fan speed setting must be carried out BEFORE the boiler is fired and commissioned for the first time on propane. (page 38)

Remeha W40/60-m ECO

Covers: W40

Enter Service Mode (Servicecode)

  1. Druk tegelijkertijd de 'mode'- en de 'step'-toetsen in. Op het 'code'-venster verschijnt de letter [C].
  2. Houd deze toetsen ingedrukt en stel met de 'A'- en 'V'-toetsen code [1][2] in.
  3. Druk op de 'store'-toets om de servicecode op te slaan (het temperatuurvenster knippert tweemaal voor ontvangst).
  4. Laat de 'mode'- en de 'step'-toets los. U keert nu automatisch terug naar de bedrijfsmode.

From manual 53.497/0.000/03.09,99/P&D, page 23.

Force Max Rate (Geforceerde mode 'HOOG')

  1. Door in de bedrijfsmode de 'mode'- en de 'A'-toets tegelijkertijd in te drukken, gaat het toestel branden op het maximale vermogen.
  2. Door tegelijkertijd de 'A'- en 'V'-toetsen in te drukken, gaat het toestel terug naar de bedrijfsmode, of automatisch na 15 minuten.

From manual 53.497/0.000/03.09,99/P&D, page 21.

Force Min Rate (Geforceerde mode 'LAAG')

  1. Door in de bedrijfsmode de 'mode'- en de 'V'-toets tegelijkertijd in te drukken, gaat het toestel branden op het minimale vermogen.
  2. Door tegelijkertijd de 'A'- en 'V'-toetsen in te drukken, gaat het toestel terug naar de bedrijfsmode, of automatisch na 15 minuten.

From manual 53.497/0.000/03.09,99/P&D, page 21.

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Common questions

Is service mode the same as chimney sweep mode?

Yes, in practice. Makers use different names for the same function: service mode, chimney sweep mode, test mode, calibration mode, check programme. Each one holds the burner at a fixed rate, usually maximum then minimum, so you can take a stable combustion reading.

Can I adjust the gas valve while it's in service mode?

Only where the manual gives an adjustment procedure, and only with an analyser in the flue. Many current boilers are set at the factory and the manual says not to touch the gas valve. Where a manual says that, it is shown with the procedure above.

Other makers

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Service mode and combustion checks are work for a competent, Gas Safe registered engineer. These procedures are taken from the manufacturers' manuals and inform your judgement; they don't replace it. Always work to the manual for the exact appliance, its data badge and the current standards.