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FAQs · Troubleshooting

Welcome to the Nuvair Frequently Asked Questions (FAQs) / Troubleshooting page. Are you having problems with equipment purchased from Nuvair? We are here to help! To help us assist you, we ask that you review information on this page before calling or emailing us for assistance. Here, we offer a variety of checklists, how-to documents, and cross-references to a variety of videos. To help you locate the appropriate resource quickly, we offer a keyword for each entry. 

Compressor Troubleshooting (General)

Keyword Description Format/Link
Checklist Compressor Troubleshooting Checklist (General)
If you have an unknown type of compressor issue, please complete this checklist and email to [email protected] before contacting Nuvair for assistance.		 PDF File

Electrical Troubleshooting (General)

Keyword Description Format/Link
Checklist Electrical Troubleshooting Checklist
If you have a known equipment electrical issue, please complete this checklist and email to [email protected] before contacting Nuvair for technical assistance.		 PDF File
Lista de
Verificación		 Lista para Problemas con el Compressor Eléctrico
Si tiene un problema eléctrico conocido en el equipo, complete esta lista de verificación y envíe un correo electrónico a [email protected] antes de comunicarse con Nuvair para obtener asistencia técnica.		 Archivo PDF
SmoothStart Nuvair SmoothStart Troubleshooting Guide
Assistance with troubleshooting the Nuvair SmoothStart module. For additional assistance, send an email to [email protected].		 PDF File
Variable Speed Drive Invertek OptiDrive AC Variable Speed Drive PDF File

Nuvair O2 Quickstick Oxygen Analyzer for Nitrox Divers

Keyword Description Format/Link
Operation How do I operate the O₂ Quickstick? (Quick Start Video Guide) YouTube Video
Sensor How do I replace the O₂ Quickstick sensor? YouTube Video
Battery How do I replace the O₂ Quickstick battery? YouTube Video
CDB How do I replace the O₂ Quickstick Circular Distribution Board? YouTube Video
Knob My O₂ Quickstick potentiometer knob spins freely and I can't turn it on/off or calibrate. How can I fix it? PDF File
Troubleshoot O₂ Quickstick Troubleshooting Checking
For O₂ Quicksticks manufactured after August 2021. If you have an unknown Quickstick issue, please complete this yes/no tree before contacting Nuvair for assistance.		 PDF File

Nuvair Pro CO Carbon Monoxide Analyzer

Keyword Description Format/Link
Checklist How do I operate the Nuvair Pro CO (carbon monoxide) Analyzer? [Quick Start Video Guide] YouTube Video
Calibration How do I calibrate the Nuvair Pro CO (carbon monoxide) Analyzer? YouTube Shorts

MCH6 Compressor

Keyword Description Format/Link
Installation How do I setup and install the MCH6 Electric compressor? YouTube Video
Installation How do I setup and install the MCH6 Gas compressor? YouTube Video
Installation How do I run the MCH6 ICON Electric compressor for the first time? YouTube Video
Maintenance How do I regularly maintain the MCH6 compressor? YouTube Video
Belt How do I replace the MCH6 compressor belt? YouTube Video
Hoses How do I replace MCH6 high pressure hoses? YouTube Video
Filter How do I replace an MCH6 intake air filter? YouTube Video
Filter How do I replace the MCH6 compressor activated carbon filter? YouTube Video
Refill How do I refill DIN tanks using the MCH6 compressor? YouTube Video
Refill How do I refill INT (Yoke) tanks using the MCH6 compressor? YouTube Video
Auto-Stop How do I install an auto-stop shutoff switch on the MCH6 compressor? YouTube Video
Auto-Stop How do I install an auto-stop on the MCH6 Gas compressor? YouTube Video
Auto-Stop How do I install an auto-stop on the MCH6 Electric compressor? YouTube Video
Auto-Drain How do I install an auto-drain on the MCH6 Electric compressor? YouTube Video
Auto-Drain How do I install an auto-drain on the MCH6 400V Electric compressor? YouTube Video
Hour Meter How do I install an MCH6 compressor hour meter? YouTube Video
First How do I disassemble/assemble the MCH6 compressor first stage? YouTube Video
Second How do I disassemble/assemble the MCH6 compressor second stage? YouTube Video
Third How do I disassemble/assemble the MCH6 compressor third stage? YouTube Video
Fourth How do I disassemble/assemble the MCH6 compressor fourth stage? YouTube Video
Crankshaft How do I disassemble the MCH6 compressor crankshaft? YouTube Video
Crankshaft How do I assemble the MCH6 compressor crankshaft? YouTube Video
Pump How do I replace the MCH6 pumping unit (block)? YouTube Video
Disassembly How do I completely disassemble the MCH6 compressor? YouTube Video
Motor How do I replace the MCH6 electric motor? YouTube Video

MCH13-MCH16 Compressor

Keyword Description Format/Link
Installation How do I install and maintain the MCH16 compressor? YouTube Video
Installation How do I run the SMART compressor for the first time? YouTube Video
Maintenance How do I maintain the SMART MCH16 compressor? YouTube Video
Maintenance What is the ordinary maintenance on the SMART compressor? YouTube Video
Mini Tech How do I operate the Nuvair Mini Tech compressor? YouTube Video
Filter How do I replace the air intake filter on MCH13-MCH16 compressors? YouTube Video
Filter How do I change the air purification filters of MCH13-MCH16 Electric compressors? YouTube Video
Filter How do I change the MCH13-MCH16 Maxfilter cartridge (activated carbon/molecular sieve)? YouTube Video
Lubrication How do I change the oil on MCH13-MCH16 Electric compressors? YouTube Video
Belt How do I change the belt of MCH13-MCH16 Electric compressors? YouTube Video
Fan How do I remove replace MCH8-MCH16 fan flywheel built after 12/2006? YouTube Video
Fan How do I disassemble/assemble the cooling fan on MCH13-MCH16 compressors? YouTube Video
Pipes How do I disassemble/assemble cooling pipes on MCH13-MCH16 compressors? YouTube Video
Plate How do I maintain the MCH13-MCH16 filter mounting plate ("hold-filters plate")? YouTube Video
Crankshaft How do I disassemble the MCH13-MCH16 crankshaft? YouTube Video
Crankshaft How do I assemble the MCH13-MCH16 crankshaft? YouTube Video
Switchboard How do I install the automatic switchboard on MCH13-MCH16 Electric compressors? YouTube Video
First How do I disassemble/assemblE the MCH13-MCH16 compressor first stage? YouTube Video
Second How to I disassemble/assemble the MCH13-MCH16 compressor second stage? YouTube Video
Third How do I disassemble/assemble the MCH13-MCH16 compressor third stage? YouTube Video
Valves How do I disassemble/assemble MCH13-MCH16 second stage valves? YouTube Video
Valves How do I replace MCH13-MCH16 compressor third stage valves? YouTube Video
Piston How do I disassemble/assemble MCH13-MCH16 compressor third stage piston YouTube Video
Red Head How do I install an MCH13-MCH16 Red Head valve? YouTube Video
Lap How do I lap MCH13-MCH16 Red Head valves? YouTube Video
Block How do I disassemble the MCH13-MCH16 compressor unit (block)? YouTube Video
Block How do I assemble the MCH13-MCH16 compressor unit (block)? YouTube Video
ERGO TPS Can you tell me more about the ERGO TPS series of compressors? YouTube Video

MCH20-24 Compressor

Keyword Description Format/Link
Second How do I change MCH20-24 second stage valves? YouTube Video

MCH22-MCH45 Compressor

Keyword Description Format/Link
Installation How do I install and run the MCH22-MCH45 vertical compressor? YouTube Video
Maintenance How do I regularly maintain the MCH22-MCH45 compressor? YouTube Video
Blue Head How to I assemble the MCH36 Blue Head? YouTube Video
Head How do I assemble an MCH36 head? YouTube Short
Fourth How do I replace an MCH30-MCH36 fourth stage? YouTube Video

Nuvair Voyager Nitrox Systems

Keyword Description Format/Link
Overview How does the Nuvair Voyager II, III, and IV work? YouTube Video
Operation How do I run the Nuvair Voyager II Nitrox System YouTube Video
Operation How do I operate the Nuvair Voyager Nitrox System?  YouTube Video
Maintenance How do I maintain the Nuvair Voyager Nitrox System? YouTube Video

Fittings

Keyword Description Format/Link
Type Do I have a COMPRESSION or JIC fitting? PDF File
Sizing JIC Thread Size Chart JPG File
O-ring ORX017 O-ring for 955 check valve and GO26 Boss coupling adapter PDF File

Installation, Operation & Maintenance (General)

Keyword Description Format/Link
Aftercoolers How effective are compressor aftercoolers? YouTube Video
Air/Gas Tests What air and gas standard tests can Nuvair conduct? PDF File
Antivirus Norton Antivirus False Positive Error: Nuvair.com is Safe PDF File
Auto Drains How do I troubleshoot Nuvair Auto Drains? PDF File
Auto Drains Coltri Auto Drain Seal/Poppet Comparisons PDF File
Auto Stop How do I install a digital pressure switch upgrade? YouTube Video
Check Valves Coltri Check Valves 955 & SC000492 O-Ring Disambiguation PDF File
Compressors Start-Up Warranty Registration Form for authorized compressor start-up personnel. PDF File
Connection How do I connect an LP nitrox compressor to a high pressure compressor? YouTube Video
EK76 How do I check/change oil on an EK76 low pressure compressor? YouTube Video
Fill Containment How do I adjust fill containment station (blast cabinet) pneumatic door controllers?  PDF File
Maxifilter How do I replace activated carbon in the reusable Maxifilter cartridge? YouTube Video
Maxifilter How do I replace the molecular sieve in the reusable Maxifilter cartridge? YouTube Video
Maxifilter How do I replace activated carbon, CO catalyst, and molecular sieve in the reusable Maxifilter cartridge? YouTube Video
PayPal Using PayPal (with or without a PayPal account) to pay for Nuvair.com purchases. PDF File
Q325 Belt Guard How to I install a belt guard support bracket on Quincy 325 diesel and electric compressors? PDF File
Racks & Frames What is the certification process for tank racks and equipment frames? PDF File
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