Moccamaster models

Moccamaster coffee makers are made to be repaired, this page provides details required to do the repair yourself.

Engineering specifications

Technivorm follows these engineering principles for their coffee makers:

• Brew temperature 92-96C
• Saturation time 4 to 6 minutes
• Keep warm at 80-85C for 40-100 min
• Water float for contained boiling operation
• Thermostat at 145C for regulation
• Thermo-fuse at 260C for protection
• Restricted water flow indicator for descaling/overheating
• Cleanability
• Longevity
• Reliability
• Warranty

The classic KB 741, see the service manual for further details:

User manuals

• Moccamaster KB/KBG/KBGV SELECT/KBT/KBTS/KBGT & CD Grand/CDT Grand/CDGT quick-guide and user manual - US (PDF) - newer manual for the US, 2020
• Moccamaster HB/KB/HBG/KBG/KBG SELECT/KBT/KBGT & CD/CDT/CDGT user manual (PDF) - newer manual, 2019
• Moccamaster H/K/KB/HBG/KBG/KBGT/KBTS & CD/CDT/CDGT/GCS user manual (PDF) - older manual, 2016
• Moccamaster H/K/KB/HBG/KBG/KBGT/KBTS & CD/CDT/CDGT/GCS user manual - US (PDF) - older manual for the US, 2013
• Moccamaster KBGT 20 user manual (PDF)
• Moccamaster One-Cup user manual (PDF)
• Moccamaster 68 user manual (PDF)

Service manuals

• Moccamaster service manual 2007 (PDF) - exploded view, parts list, electrical diagram, models up till April 2007
• If you come over newer service manuals, contact me at

Production date

How to find the production date:

Look at the bottom of the machine, on the label

• On older machines, for:

prod. 0300

This means MMYY or expanded 03.2000, i.e. March 2000.

• On newer machines, look for:

Serial No: 1503 XXXXX
Serial No: 1503XXXXX

This means YYMM, or expanded 2015.03, i.e. March 2015.

You can also look at the bottom of the water reservoir for a plastic injection moulding mark/dial.

Model numbers

What the letters mean:

H	Rectangular body column, single-setting hotplate (Europe only)
K	Rectangular body column, dual-setting hotplate (2-5 cups use 3/4 circle (80C/175F) / 6-10 cups use full circle (85C/185F) to activate both heating elements)
B	Filter holder platform
CD	Cylindrical body column, dual-setting hotplate (2-5 cups use 3/4 circle / 6-10 cups use full circle to activate both heating elements)
G	Automatic drip-stop when removing carafe (platform has a mechanical lever that opens/closes the brew basket when the carafe is moved)
Non-G	Manual adjust drip-stop on basket (closed / 2-5 cups use half-open for limited flow thru rate / 6-10 cups use fully-open for normal flow thru rate)
V	Volume / flow control, paired with corresponding hotplate temperature level (2-6 cups use half-carafe for longer brew time and temperature stability / 7-10 cups use full-carafe for normal brew time and temperature)
T	Thermo steel carafe
Non-T	Glass carafe
S	Smaller, 8-cups, manual adjust drip-stop, single setting hotplate, auto-off
C	Descaling light indicator, lights up when the termostat trips (defined on newer models, older models has it in the type, ex. 741.81)
AO	Automatically turn off system / hotplate after 40(EU)-100 min

Model list

Different models, old and new. Additional numbers spesicify futher variations of the models, i.e. 741 classic coffee maker, 743 dual narrow coffee maker, 744 dual grouped coffee maker, 851 smaller 8 cup maker, 40 round plastic base maker, 20 dual thermo carafe maker, etc.

* Popular models

Model	Carafe	Capacity	Hotplate	Housing	Brew control	Drip-stop	Auto-off system / hotplate
H	glass	10 cups / 1.25 L / 40 oz	single setting	rectangular	none	none	manual switch
HB	glass	10 cups / 1.25 L / 40 oz	single setting	rectangular	brew extraction lever, 2-5 cups / 6-10 cups	manual close lever	manual switch
HB AO	glass	10 cups / 1.25 L / 40 oz	single setting	rectangular	brew extraction lever, 2-5 cups / 6-10 cups	manual close lever	automatic, 40-100 min
HBG	glass	10 cups / 1.25 L / 40 oz	single setting	rectangular	none	automatic close	manual switch
K	glass	10 cups / 1.25 L / 40 oz	2 settings	rectangular	none	none	manual switch
KB	glass	10 cups / 1.25 L / 40 oz	2 settings	rectangular	brew extraction lever, 2-5 cups / 6-10 cups	manual close lever	manual switch
* KB AO / MANUAL	glass	10 cups / 1.25 L / 40 oz	2 settings	rectangular	brew extraction lever, 2-5 cups / 6-10 cups	manual close lever	automatic, 40-100 min
KBG	glass	10 cups / 1.25 L / 40 oz	2 settings	rectangular	none	automatic close	manual switch
* KBG AO / AUTOMATIC	glass	10 cups / 1.25 L / 40 oz	2 settings	rectangular	none	automatic close	automatic, 40-100 min
* KBGV / KBG SELECT / OPTIO	glass	10 cups / 1.25 L / 40 oz	2 settings, paired with volume switch	rectangular	brew volume switch, 2-6 cups / 7-10 cups	automatic close	automatic, 40-100 min
KBS	glass	8 cups / 1 L / 32 oz	single setting	rectangular	brew extraction lever, 2-5 cups / 6-10 cups	manual close lever	automatic, 40-100 min
KBT / MANUAL THERMO	steel	10 cups / 1.25 L / 40 oz	none	rectangular	brew extraction lever, 2-5 cups / 6-10 cups	manual close lever	manual switch
* KBGT / AUTOMATIC THERMO	steel	10 cups / 1.25 L / 40 oz	none	rectangular	none	automatic close	manual switch
KBTS	steel	8 cups / 1 L / 32 oz	none	rectangular	brew extraction lever, 2-5 cups / 6-10 cups	manual close lever	manual switch
CD (Europe only)	glass	10 cups / 1.25 L / 40 oz	2 settings	cylindrical	none	none	manual switch
CD AO (Europe only)	glass	10 cups / 1.25 L / 40 oz	2 settings	cylindrical	none	none	automatic, 40-100 min
CDG	glass	10 cups / 1.25 L / 40 oz	2 settings	cylindrical	none	automatic close	manual switch
CDK	glass	10 cups / 1.25 L / 40 oz	single setting	cylindrical	none	none	manual switch
CD GRAND	glass	14 cups / 1.8 L / 60 oz	2 settings	cylindrical	none	manual pull-out	manual switch
CDT / THERMO	steel	10 cups / 1.25 L / 40 oz	none	cylindrical	brew extraction lever, 2-5 cups / 6-10 cups	manual close lever	manual switch
CDT GRAND	steel	14 cups / 1.8 L / 60 oz	none	cylindrical	none	manual pull-out	manual switch
CDGT / AUTOMATIC THERMO	steel	10 cups / 1.25 L / 40 oz	none	cylindrical	none	automatic close	manual switch
CDGT AO	steel	10 cups / 1.25 L / 40 oz	none	cylindrical	none	automatic close	automatic, 40-100 min
ONE-CUP	none	1 cup / 0.33 L / 10 oz	none	rectangular	none	none	manual switch

• Model names with an "S" at the end, i.e. "AUTOMATIC S", means indicator for descaling
• There are no "T" / thermo models with AO/AUTOFF since there is no hotplate and the float switch will turn off the system entirely
• The optimal Moccamaster would be a KBGV with replaced brew basket and platform from the KB, so you get both volume control and extraction control

References

• Which Moccamaster Should You Buy? A Decision-Making Guide